Dominic Purcell of "Prison Break" stars in "Vikingdom" as Eirick, king of Jomsborg. Exiled since his death and miraculous resurrection, Eirick is on a quest to prevent Thor (Conan Stevens) from opening the gates of Valhalla and connecting the earth with heaven and hell. Yes, that would be the same Thor character assumed by Chris Hemsworth in various Hollywood Marvel tent poles. The god of thunder turns villainous here, but that doesn't mean "Vikingdom" is any less removed from Norse mythology than is Stan Lee's take.